Freight transfer mechanism



Aug. 17, 1943. R. w. SCOTT 2,327,135

FREIGHT TRANSFER MECHANISM 3 Sheets-Sheet l Filed Nov. 4, 1941 JINVENTOR Al/MSEY W SCOTT Aug. 17, 1943.

Filed Nov. 4, 1941 Rivm:

R. W. SCOTT FREIGHT TRANSFER MECHANISM 5 Sheets-Sheet 3 INVENTOR Rl/MSEYW. SCOTT ATTORN EY Patented Aug. 17, 1943 V ew F UNITED 3 327 135ERE-lGHTTRANSFER MECHANISM Ramsey"??- fit ei fit fig 9on9 s I ppliegtionNoyeznlger 4, 1941, SerialNo. {17, 130 v 3 fileixt sf (0.21 1 7 Thisinvention l t t i roveme tsdin ei h ans e mechanism en e i l y t me hams which are mounted pon a vehicle for movin loads r m the vehicle t enpl e vehic or Pla f r or o the vehi l from neth vehic or p atform- M inveon're e smthat t ne f-suoh m qha isms a r e nged t e e loads laterallyto or fl oni either side oftiie veni- 1 o hi i is'e pl ed- Itis n qssary, such arrangeme'nts are applied to med V'ehieles or railway earthat it does ot extend beyond the overall Width of the ehicle when notin use, alth it should be a bl Q m a ti t the transferred ,loedejn'iovement'in' espes's of such Width; w

One of the objects of myinventioni to proe a m l a inex n r e i mwiiif hmeets these requirements. Inlmany" eases, or examp a wh n I ra sfer m canism 9f the typeto whicll this invention pertains, is applied toCertain kinds of vehicles, jsjnch as trailers, the longitudinal spaceavailableisliniited, and another object ofmy invention is to proyide' a'sim l m h m whi i be en ie such limited longituoinalspeoe; p

A st ll fu e bje or iriy inv n on s topmvid simple xp d ent 'gib over oing d ifi l lt ties encountered in side 'logding because ofdi f:feriences of level IQetween tneiblatfq ms "of t vehicles o be w e vehtle and .a platform,

Q h b s vof 1. m n en i n w appear ie he ibl win sn tifi st en i wh h .1wi xs e tr e' an erm emen Whith s made me i l a 'embo he b seet inventin-the n el features of which I 'will point out in" appended V v l 7Referring to tl edra wings,

' Fi 1 is a an iew m re o l ss dia ram? m c, ofra nex iota ,motor treiereoui ped with f i ht t ans e m chani m w i h i imed o' ng to a d embode my'invention, and o en edjeoe nt load supporting platform. Parts ofthe tra ferring meohanism a e shown in different relative positions inbroken lines; iEie- 21 a sid ele a i s m 9 the part showin Fi Be .3 i etend e e at n P t y i se t on;

of the art sh w i th r teens fi u es;

Fig.4 is a View similar toFig. 3 iIlWhi ChfQEtlPS "are h wn in d f e n rla ive e i i esth e tio be n taken o th n OPFie 1; nd

"Fig. 5 is aplen yie'w'of some of tl etfe rglsier m th is ar s 917 m dfi sierie se e t- I!! de i tee e h chess iot a t i qk or irat l nnrtedlon Whe l J Airt me gi l metetes on the qhetssis eompi iseslongitndingi lly spaced qh annellilge' trgns't e se g fiides' i whichfife adepted to 'i'eceive"s"ds l 3'oh the lowje'isid" "f a fllolad'oorittmini ragga {to slidsmy uiimittig confidinei. N 5

"l5designates a platform to 0-1" from whioh the container is to betransfif 'rdjf' fl i s iifafy'do'fi stetionary platform at thdeck ofanofi'ii ef' 96m ole whioti 'me l y 'b another "reed 'i e'liicjl i'i'a,raiil w'e y c231; It pi ov ided'wifih tiansvrse g des 15 tor receivingtheislgidsl' 131 'I" sl pper-ts for tlf p'onta i ne on b t'cketg l giB'fii' tefriiedii te tli e gui'des. it is be'iinde stood that betore eloald' ti ansfer o er -eon isefi e'cted, theguides 1 2 3 nd =l6 aiebrd1ight into augment.

-When there -is a spao'ibtwen the 'z' e'hiie equipped with the transiemeeliani'sni wliiol 1 em about to desoril oe and tlidplattdrirfhQVingthe gilides u s shown n Fig'sil and 4; bridges I I are .used. 'lthesgaige provided with mpks I? which engage 'suitable teeeptaoles on --thetr'iiiler and their other ends rest on' the' pltform"=l5'. The uppersurfaces of these biidg 'e's are co ii; struoted to form guides 19betweh'th guides lzia'ndls. 1 I he novel transfer mechenism which I haveinvented comprises a, pair of lever's 2S] and 3 0,

mounted to swing aboutla central pivot elt if. The ends vof these leiets arrelslot'tedj-as at 22, 32, so that 1- they may slide lldngitu'diriall'gf oil t'li pivot. Lever 30 is 0fiset,-as1at SL'sothzit itsouter .end :is at substantially the sam ivei as that oileverI-B. :23, 33are sprocket :chains which run-around sprocket Wheels 224, 3.4 and Iguide sheaves 25', 26' and 35, Aft respectivelyZmounted' in frames 2 and3:1; zit hexuide .shea ve 1251s .in transverse elinement with thesprocket wheel .24 t'nd the sheaye 72 6 which ;is.sub"sta.ntiallmidway-between them is offset toward the pivot 2 l. The sheaves Iii-and.35 .are similarly positioned: in ielatio'rl to thesprookatmheel 13A.*Thedeszer Wis connected pe '62, form of valves 65 and 15 from whichlevers 66 and '16 extend. Between these valves is a control lever 10connected with the levers ES and 76 by connecting rods 1i and 2 forsimultaneous actuation of the valves. Either one of these rods may bedisconnected from its respective valve lever, as shown at 72A, forindividual actuation of the valves.

When the control lever is moved downwardly ports in valve '55 willconnect the pressure pipe 64 with a pipe 42 which leads to the lefthand, end of cylinder 49 and at the same time will connect a pipe 43from the right hand end of cylinder Ail with a return pipe E! from.valve 65 to tank ti. This will cause the rack 4| to be moved to theright to rotate pinion 29 and sprocket wheel 24 in a clockwisedirection.

If the Valve 75 is rotated in the same direction at the same time, itports will connect the pressure line '54 with a pipe 52 which leads tothe right hand end of tank 58 and the outlet pipe 61 with a pipe 53 fromthe right hand end of tank 50. This will cause rack 5! to move to theright to rotate pinion 39 and sprocket wheel 34 in an anti-clockwisedirection.

If valves 65 and T5 are moved in the opposite direction from thatdescribed, pressure will be admitted through pipes 43 and 53 to theright hand ends of cylinders 48 and 50 and oil will flow from the lefthand ends of these cylinders through; a

pipes 52, 52, valves 65, i5 and pipe 67 to tank 6 i This, of course,will result in the rotation of sprocket wheel 24 in ananticlockwisedirection and the rotation of sprocket wheel 34 in a clockwisedirection.

If the levers 25 and 39 are in the positions in which they are shown infull lines in Fig. 1 and valves 65, 15 are turned in a clockwisedirection,

the points of connection 28, 38 between the levers and the chains 23, 33will be moved toward the center of the vehicle and toward each other.When the points of connection reach the longitudinal center of thevehicle in the positions shown at 28A and'38A in Fig. 1, they have swungthe levers into alinement a'ndhave drawn them into the positionsindicated at 29A and 36A. The result is that the ends of the levers movein sub stantially straight lines transverse to the longitudinal axis ofvthe vehicle.

Auxiliary members 80 and Si] are connected by vertical pivots 8|, 9| tothe levers 2B andiSU near their outer ends and arms 82, 92 are connectedto these members by horizontal pivots 83, 93; The outer ends of thearms82, 92 are shaped to form hooks to engage pins HA onthe containersI4 in line with theguides l2 andiB, for either pushing or pulling thecontainers from or to the vehicle, (see Fig. 4)

When the vehicle is being drawn along a highway the levers 20, 36 areretracted :until their outer ends are within the overall width of thevehicle, in this case represented by the length of the guides [2. Afterthe Vehicle has been pulled up alongside of the platform l5 anditsguidesI2 alined with the guides lGfthe levers 2D, 30 are moved out into theposition in which they are shown in broken lines at 263 and 33B inFig; 1. Then the members 82, 92 are engaged with the pins ll on thecontainer.. Then the levers 28,30 are actuated by the mechanism whichhas been described. The container i l will be pushed there by onto theplatform l5. The lovers are capable form and thus compensate for thisdiiference of level.

It is obvious that the operation thus described may be performed fromeither side of the vehicle and that it may be reversed to pull acontainer from a platform onto the vehicle.

In the arrangement shown in Fig. 1 either of the levers 20, 30 may bmoved without moving the other and if occasion requires they may bemoved in opposite directions.

are shown in full lines in Fig. 1, which is enough In the modificationshown in Fig. 5 a single actuating cylinder 49A is shown arranged toactuate two racks MA, 51A simultaneously. These racks actuate pinions29A,. 39A and sprocket wheels 24A, 34A simultaneously in oppositedirections to drive the chains 23A, 33A in a manner similar to thatwhich has been described.

Th mechanisms shown and described herein are merely for illustrativepurposes an many structural modifications may be made within the scopeand spirit of the invention. I intend no limitations other than thoseimposed by the following claims: i '1 l. A vehicle loadtransfermechanis'm comprising a pair of levers slidably mounted onfulcrums near the transverse center of thevehicle, and mechanism forswinging the levers simultaneously in opposite directions across thevehicle,'the free ends of said levers moving througha path longer. thanthe width of the vehicle in a substantially common plane insubstantially rectilinear lines normal to the longitudinal axis of thevehicle;

2. In a vehicle load transfer mechanism, a lever, a fulcrum for thelever near the transverse center of the vehicle, said leverbeing slottedto slide on the fulcrum, an endless driving chain across the vehiclehaving one of its runs guided to move in paths oppositely oblique to aline normal to the longitudinal axis of the vehicle, and a connectionbetween the lever and the obliquely movable part of the chain.

3. In a vehicle load transfer mechanism, a pair of oppositely. disposedlevers, ,a fulcrum for' the levers near the transverse center of thevehicle, said levers being slotted toslide on the fulcrum, a 'pair ofendless driving'chains across the ve-. hicle, each having one .of itsruns guided to move in paths oppositely oblique to a line'normal to thelongitudinal axis of the vehicle, and a connection between each 'lever'and/the obliquely movable part of one of the chains; 7

e. In a vehicle load transfer mechanism, av pair of oppositely disposedlevers, a fulcrum for the levers near the transverse center 'of thevehicle, said levers being slotted to slide on thefulcrui'ri, a pair ofendless chains across the vehicle, each having one of its runs guided tomove. in paths oppositely oblique to a line normal tothe longitudinalaxis of the vehicle, a connection between each lever and the obliquelymovable part of one of the chains, and fluid pressure meansfordrivingthe chains. l

5. In a vehicle load transfer mechanism, span of oppositely disposedlevers, a fulcrum for the a pair of endless chains across the vehicle,each having one of its runs guided to move in paths oppositely obliqueto a line normal to the longitudinal axis of the vehicle, a connectionbetween each lever and the obliquely movable part of one of the chains,fluid pressure means for drivin the chains, an independent control valvefor each of said driving means, and means for operating both of saidvalves together.

6. A vehicle load transfer mechanism comprising a pair of leversslidably mounted on fulcrums near the transverse center of the vehicle,mechanism for swinging the levers simultaneously in opposite directionsacross the vehicle, the free ends of said levers moving through a pathlonger than the width of the vehicle in a substantially common plane insubstantially rectilinear lines normal to the longitudinal axis of thevehicle and auxiliary members horizontally pivoted to the levers nearthe free ends thereof.

7. A vehicle load mechanism comprising a pair of levers, fulcrums forthe levers near the longitudinal center of the vehicle, said leversbeing slidably mounted on the fulcrums, mechanism for irnpartin to thelevers a longitudinal movement relative to the fulcrums and swinging thelevers simultaneously in opposite directions across the vehicle, thefree ends of the levers moving through a path longer than the Width ofthe vehicle in a substantially common plane in substantially rectilinearlines normal to the longitudinal axis of the vehicle. 7

8. A vehicle load transfer mechanism comprising a pair of leversslidably mounted on fulcrums near the transverse center of the vehicle,mechanism engaging the levers at points intermediate the ends of thelevers for swinging the levers simultaneously in opposite directionsacross the vehicle, the free ends of the levers moving through a pathlonger than the width of the vehicle in a substantially common plane,and means for guiding said points of engagement out of straight paths tocause the free ends of the levers to move in a substantially commonplane in substantially rectilinear lines normal to the longitudinal axisof the vehicle.

9. A vehicle load transfer mechanism comprising a pair of leversslidably mounted on fulcrums near the transverse center of the vehicle,fluid pressure actuated means connected with each of the levers forswinging the levers, an independent control valve for each of said fluidpressure actuated means, and means for selectively operating either ofsaid valves independently or moving both of the valves together to swingthe levers simultaneously in opposite directions across the vehicle, thefree ends of said levers moving through a path longer than the width ofthe vehicle in a substantially common plane in sub stantiallyrectilinear lines normal to the longitudinal axis of the vehicle.

RUMSEY W. SCOTT.

